Territory



(No Model.) 3 Sheets-Sheet 1.

F. BISHOP. ORE GRUSHER.

No. 519,228. Patented May 1', 1894.

WITNESSES.

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3 Sheets$heet 3'.

(N6 Model.)

F. BISHOP.

ORB GRUSHER.

Patented May 1, 1894.

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ATTORNEYS.

WITNESSES I aUNITED STATES PATENT: OFFICE.

FRANK. BISHOP, or oGD' N, UTAH TERRITORY.

ORE-CRUSHER.

srnomxcnrlonrormin part of Letters Patent No.'519,228, dated May 1, 1894.

I ApplicaticnfiledMayliil,189 3: SerialNo-d'ldQOli. (No model.)

To an whom it may conccrm den, in the county'of Weber and Territory of Utah, have invented anew and Improved Ore-Crusher, of which the following. is afull,

clear, and exactdescr'iption.

The invention relates to machines for;

crushing and pulveriz'ing gold, silver or other ores, &c., and its object is to provide a\new and improved crusher which is simple and durable in construction and very effective in operation.

be hereinafter described and then pointed out in the claims."

Reference is to be had to the accompanying drawings, forming a part of this specification,

inv which similar letters of reference indicate corresponding parts in all the figures. Figure 1 is a plan view of the improvement with parts broken out. Fig. 2is a sectional side'elevation of the same on the line 2-2 of Fig. 1. Fig. 3 is a sectional side elevation of one of the scrapers. Fig. Lisa planview of thebase and the means for imparting a rotary motion to the revoluble bed. Fig; 5 is an inverted plan view of the ,revoluble bed; and Fig. 6 is asectional, face view of one of the crushing rollers. H

The improved crusher is provided with a base A supported .on a foundation A' and carrying sets of posts B in which are journaled the shafts C, 0', C C of which the shafts C, C carryon their outer ends pulleys D and D respectively, connected by belts D and D with pulleys D and D secured outhe line shaft D connected with suitable machinery for imparting a rotary motion to the its top steps F, formed circularly on-the'uni d'er side of the ring-shaped bed Fhaving a 7 top facing F on which the crushing of, the

ore or stone takes place. It is understood that the bed F is horizontally disposed, and rests on several step pulleys E arranged in the sets of posts 13, as above described.

As shown in Figs, 1 and 2, four shafts and corresponding step pulleys are provided, the

I f several shafts extending radially from a con- Be it known that I, FRANK BISHOP,- of Ogter which. is the center for the bed F, and also for the annular steps F engaging the step pul leys On the under side of'the bed F and near theouteredge .of the same-is secured a gear wheel G, in'mesh with gear wheels H, at-

tached on the shafts C and .G next to the base ends of the pulleys Ecarried by thesaid shafts.

Now, it will be seen that when the shafts G and C are rotated, the gear. wheels H will impart a rotary motion to the bed F supp ported on the pulleys Ewhich also tend to The invention consists of certain parts and details,and combinations of thesame, as will impart a forward motion to the bed. On the top of .the facing F of the latter is formed a series of concentric annular grooves Ft, approximately V-shaped and adapted to be engaged by v correspondingly shaped ridges formedon rims I, bolted or otherwise secured to the rim of rollers J, secured on shafts K, journaled in boxes L, mounted to slide vertically in the upper ends of the sets of the postsB directly above and in line with the corresponding shafts O, 0Z0 and-C journaled in the lower ends of the respective posts,

as'before described.

On top of thebearings L press the springs N, the tensionof each being regulated by a set screw O, screwing in the upper ends of the posts and abutting on the top of the corresponding spring. .Thus, when the material is treated, the individual roller J can move upwardly its bearings L moving against the tension of the corresponding springs N. As shown in Figs. 1 and 2, the rims I and rollersJ are iuclosed at. their upper half in a suitable casing P, held on a base P bolted or otherwise secured to the posts B.

The bed Fis provided with an outer annular fiange F flaring outwardly and upwardly asplainly shown inFig. 2, and a similar flaring flange F is arranged on the inner side of the. said bed F. A circular screenQ,

.and-a rim Q are attached to the upper ends of the said flanges F and F respectively, and extendvertically under flanges P and P depending from the base P carrying the hoods P.

Scrapers R are suspended from the stationary. casings P in front of the latter, the said scrapers extending from the exterior flange F of the bed F inwardly over the corrugated facing -F to guide the material onto the latter.

roo

ceiving spouts or troughs V and V, inclined toward each other and provided at their lowest ends with discharge spouts V leading to the settling tanks W. x

The operation is as follows: When the sev-. eral parts are in the posit-ion shown in Fig. 2. and a rotary motion is imparted to the several shafts 0, then the bed F is revolved,as previously described and the material fed by the conveyors S onto the bed-facing E and into the annular V-shaped grooves F to be car-.

ried under therimsI andconsequentlycrushed by the frictional contact of the rollers --.I with the V-shapedgroov'es on the facing of thebed F. It will be seen that the pressure of the crushing rollers J can be increased or diminished by regulating the tension of the springs N by the set screws 0,so that the 7 said rollers press with more or less force onto the material passing between the rollers, and the facing of the bed. The crushed material is thrown by-the centrifugal force'of the revolving bed F against the screen Q, and if crushed sufliciently fine passes through the 3 5 meshes of the screen to drop into the troughs V and V' from which the crushed material passes to the tank W to be further treated.

The larger material not passing through the 40 the inside of the screen onto the flange F. to

be finally guided back into the grooves of the bed facing Why the aprons R to be again subjected to the crushing process of the rollers, asabove described.

in this manner is not liable $0 get out of order, as it is composed of but few parts. It will further be seen that it requires but little power to run .themachine for crushing'a large 5o amount of ore or other material.

Having thus fully described my invention,

I claim as new and'desire to secure by Letters Patent- 1. Act-usher, comprising a bed having steps 5 5 formed on its under side and mounted to revolve on step pulleys, and rollersarranged over the bed, substantially as set forth.

. 2. A crusher, comprising a bed having steps formed onits under side and mounted to revolve on step pulleys, screens secured to the outer edge of said bed, and rollers journaled loosely in yieldingly mounted bearings, the said rollers beingarranged over the revolving bed, substantially as described. a

3. A crusher, comprising a bed having steps 5 formed on its under side and mounted to reshown and described.

It will be seen that a machine constructed volve on step pulleys, screens secured to the outer edge of said bed, rollers arranged over the revolving bed, andflxed scrapers for guiding the material to the bed, substantially as 4. A crusher, comprising an annular bed mounted to revolve, a screen secured to the outer edge of the said bed,a rim arranged on the inneredge, rollers arranged over the revolving bed and a fixed base carrying covers for the rollers and providedwith downwardly projecting flanges to overlap the edges of the screen and rim, substantially as shown and described.

5. A crusher, comprising an annular bed mounted to revolve, said bed being formed with concentric grooves on its top surface, flaring flangesarranged on the outer and inner sides of said bed, upwardly extending screens secured to the outer flange, an imperforate rim secured to the inner flange, rollers formed with ridges to engage the grooves on top of the bed, fixed scrapers extending from the exterior flange of the bed inwardly, and troughs arranged on the out: side of said screens, substantiallyas shown and described.

6. A crusher, comprising an annular bed mounted to revolve, an upwardly extending screen secured to the outer edge of said bed and through which. passes the crushed material, an imperforate rim' secured to the inner edge of said bed, rollers arranged over the said reyolving bed, a fixed base carrying covers tor the rollers and having flanges adapted to engage the edges of the screen and rim, said base being'provided with feed openingsthrough which the material is deliveredto the. rev'olving bed, and conveyors discharging into said :05 feed openingasubstantially as shown and described.

7. A crusher, comprising an annular bed havingsteps formed on its under side and mounted to revolve on step pulleys arranged beneath the-said bed, rollers arranged above. the bed, sets of posts carrying hearings in which are journaled the shafts of said pul leys, one post of each set beinglocatedoutside of the annular bed and the other extending n 5 upward through the centralopening formed by the bed, the upper ends of the said posts carrying yieldingly mounted hearings in which the shafts of the rollers are journaled, substantially as shown and described.

8.- Acrusher comprising a series of step pulleys, a circular bed formed on its under side with steps engaging the step pulleys, the top of the said bed being formed with V- shaped grooves, rand yieldingly mounted rollers formed with V-shaped ridges engaging the said grooves on top of the bed, and means substantially as described, for imparting ro- 'tary niotion to the said pulleys, substantially as shown and described. I

'9. In a crusher, the combination with a" series of shafts mounted to turn, and each carrying a step pulley and a gear wheel, of a on top of the said bed, and spring pressed circular bed formed on its under side with boxes carrying the shafts for the said ridged steps engaging the step pulleys, a gear wheel rollers, substantially as shown and described. 10 secured to the under side of the said bed, and FRANK BISHOP. engaged by the gear wheels on the said shafts, Witnesses: a series of rollers having V- shaped ridges en- E. F. BRATZ, gagingcorresponding-shapedannular grooves A. A. WENGEB. 

